El ColegiadoData on refereeing in the Liga

Alfonso Álvarez × Real Zaragoza

13 matches of Real Zaragoza refereed by Alfonso Javier Álvarez Izquierdo, from 2006-07 to 2012-13.

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Real Zaragoza

Alfonso Álvarez

Real Zaragoza

inconclusivesmall sample

Inconclusive does not mean "no effect": with 13 matches, only a deviation of about ±1.44 points per match could have been detected.

Record

13matches

4 W4 D5 L

Points − expected points

−1.1pts over 13 matches

16 points obtained for 17.1 expected from the odds, i.e. −0.084 per match.

Points distribution from the odds

If only the odds mattered, over these 13 matches

Points obtained

16

Expected (odds)

17.1

Deviation

−1.1

two-sided p

0.91

Expected 17.1 ± 4.4 pts · probability of a deviation at least this large, in either direction: 91%.

For / against, per match

Real Zaragoza against its opponents, with Alfonso Álvarez

0.08
Penalties won
0.23
2.85
Yellows received
2.85
0.23
Reds received
0.08
16.2
Fouls called against
18.5

Tests on the 5 measures

Deviation per match, raw p and corrected q (Benjamini-Hochberg, all pairs)

MeasureDeviationpqVerdict
Points − expected−0.0840.911.00inconclusive
Penalty balance−0.1800.341.00inconclusive
Red-card balance−0.0930.721.00inconclusive
Yellow-card balance+0.4150.451.00inconclusive
Foul balance+3.6130.020.88inconclusive

Appointments

The club's matches assigned to this referee, observed vs expected

Observed

13

Expected

13.4

p / q

1.00 / 1.00

inconclusive Seasons without a known referee for every match are not counted.

Matches per season

Number of matches (bars) and the season's points − expected deviation (hover)

Matches

The 13 matches

From Real Zaragoza's point of view.

Loading 13 matches…

13 matches · data file: /data/paires/alvarez-izquierdo/real-zaragoza.json